Nicholas Dimitri Constantine Galitzine (/ˈɡælɪtsiːn/ GAL-it-seen; born 29 September 1994) is an English actor. After appearing in an episode of Legends in 2015, he had lead roles in the 2016 teen films High Strung and Handsome Devil. He later starred in the supernatural horror films The Craft: Legacy (2020) and the musical film Cinderella (2021), contributing to the latter's accompanying soundtrack.

Galitzine gained wider recognition for starring in the romantic streaming films Purple Hearts (2022), Red, White & Royal Blue (2023), and The Idea of You (2024), as well as the comedy film Bottoms (2023) and the period drama series Mary & George (2024).